Question

Answer my question please please please please
Simplify using identities
225×225+2×225×75+75×75
2.2×2.2-2×2.2×0.2+0.2×0.2
3.7×3.7-2.9×2.9/0.8

Answer 1

Answer:

90000

4

3.1775

Step-by-step explanation